I need to create a provider hosted addin. The web application will be an asp.net web application that will be hosted in Azure. Will everyone have access to this web application or only site users in host web where the app is installed?
The app will work only when accessed from the context of a SharePoint page. Also the addin has to be deployed in the SharePoint site & provided with required trust based on the permissions & policy you have requested in app manifest.
Everyone can access web application. App only installed in SharePoint.